I Used Garmin’s Heart Rate Monitor to Measure My ‘Running Economy,’ and Here’s What I Learned
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We may earn a commission from links on this page. If you’ve been eyeing the Garmin Forerunner 970, you may be drawn to two of its buzz-worthy features: running economy and step speed loss. But there’s a catch: You can’t access either metric without purchasing a compatible Garmin accessory like the HRM-600 heart rate monitor, […]